Process of waterproofing textile material and product thereof.



ROBERT ATHELSTAN MARE, OF NORFOLK, VIRGINIA, ASSIGNORTO GENERAL WATERPROOFING- CO., INCORPORATED, OF NORFOLK, VIRGINIA, A COB,-

ZPORATION OF VIRGINIA.

PROCESS OF WATERPROOFING TEXTILE MATERIAL AND PRODUCT THEREOF.

No Drawing.

To all whom it may concern Be it known that I, ROBERT ATHELSTAN MARE, a citizen of the United States, re-

sidin at Norfolk, in the county of Norfolk and tate of Virginia, have invented certain new and useful Improvements 1n Processes of Waterproofing Textile Mate-' rial and Products Thereof, of which the following is a specification.

The resent invention relates to the treatment 0 materials composed of textile fibers, such as fabrics, rope, yarn and the like, by impregnating the same with a treating medium containing paraflin, rosin and diatomaceous earth.

The invention includes the treatment of all materials composed of textile fibers such as duck, canvas, rope, cordage, nets for fishing, hammocks, bags and bagging, and I desire to call attention to the fact that these materials may be treated either in the finished form, or in the form of the yarn. or small string, from which the materials are to be made.

In carrying out my process the bath employed may consist of parafiin, 100 parts; diatomaceous earth, 2 to 10 parts; and rosin 3 to 10 parts; to which Paris green 1 to 2 parts, and-any dye soluble in the menstrum, in suitable quantity may be added if desired, for giving special effects, the addition of these last two being optional. The proportions may also be varied, to suit particular conditions.

The material to be treated may be in the air-dry condition, containing 5 to,15% of moisture, although for securing heavy impregnation it is advisable sometimes to use material containing more moisture than this. I call attention to the fact that rope and other materials treated with the mixture herein described becomes stronger than such rope or similar material before treatment, thereby producing a material advantage over the use of tar ,for impregnating such materials, since tar weakens the rope and other materials, and some varieties of tar appear to act injuriously on the textile fibers, possibly on account of the corrosive tar acids or other corrosive materials contained therein.

A further advantage in the use of this mixture consists in that the rope or other material. when so treated will float, although its weight has been somewhat increased, but

the exclusion of the water by the impregnated material which I employ prevents the rope from absorbing water, and thereby beconnng heavy enough to sink. This is a material advantage in ropes used for tow- 1n hnes, casting ines, and the like.

he materials when treated according to this process are preserved against the act on of dry rot, marine insects, (teredo, hmnoria, barnacles, etc.) fish slime, and the like, all of which cause the materials mentloned to deteriorate very rapidly. The material is rendered impervious to water, acids and the like.

The material being treated may be submerged in the bath, while said bath is maintained at a temperature of somewhat above the boiling point of water, say 230 to 250 F., and the bath may be allowed to 0001 almost down to the solidifying point of bath if a heavy impregnation is desired, or may be allowed to cool only a few degrees, if a light impregnation is desired.

By the use of the oil soluble dye I can produce any desired color, in the material treated, which will not wash out, and in most instances, will not fade away when exposed to the action of sea water, sunlight, and other conditions under which colors ordinarily fade more or less.

Specification of Letters Patent. Patent d De 22 1914 ap lies-m rred January 13, 1914. Serial No. 811,912.

I call particular attention to the use of I this'process in the treatment of bags for holding cement, fertilizer, and various other materials, or the fabric from which said bags are to be made. The light impregnation of the fabric or other material may be produced by treating fabric which is in its I 1 air dry condition, while the use of fabric or the like containing more moisture than this leads to a heavier impregnation suitable for other purposes. The material may be soaked in water, prior to the immersion in the bath, if desired. This process also finds special application in the treatment of canvas or duck for life preservers, tents, sails,

- etc.

By regulating the amount of the preservative, impermeablizing solution, I can produce products which are quite-stiff, or very flexible.-

I desire to call attention to the absence of volatile solvents from the treating bath, since the evaporation of these solvents, heretofore proposed in impregnating materials of this character, leaves the material more or less porous, and carries the treating agentto the surface of the fabric, etc, under treatment, leaving less of the impregnating or filling agent in the inner parts of the materials.

The use of rosin in the bath renders the process especially valuable in the manufacture of belting since it acts to prevent the slipping of belts on the pulleys. The rosin aids the'impregnation of the textile material with the constituents of the bath.

Materials comprising both fabric and rope, e. g. reinforced belts, tents and the like may be treated by this process, and in the case of stitched articles, bags, etc., the thread is treated as Well as the fabric, either before or after the stitching operation.

The use of Paris green is especially recommended in treating fish nets, ropes which are kept for long periods in salt water, ballast be S, and the like. i I

Whifie the diatomaceousearth is an extremely finely divided material, and will permeate the pores of the individual fibers,- the Paris green'is much coarser and does not penetrate so deeply, but remains as a coating, on or near the surface.

he impregnation of textile materials with a mixture including diatomaceous earth, parafiin and naphthalene, with or without rosin and Paris green, is described and claimed in my copending application Serial No. 811,911, filed concurrently herewith. a

The treatment of fabrics forming portions of life preservers is also covered by my applications Serial Nos. 811,909 and 811,910, filed concurrently herewith.

What I claim 1s: Y

1. A rocess of treating materials com posed o textile fibers which comprises impregnating the same with a preservative, waterproofing, impermeablizing agent, comprising diatomaceous earth, and a waterinsoluble fluent carrier comprising a hydrocarbon body liquid F., and rosin.

2. A process of treating materials composed of textile fibers which comprises impregnating the same with a preservative,

water-proofing, impermeablizing agent, com-' prizing diatomaceous earth, and a waterinsoluble fluent carrier comprising paraflin and rosin.

3. A rocess of treating materials composed o textile pregnating the same with a preservative water-proofing, impermeablizing agent, comprising diatomaceous earth, and a waterinsoluble fluent carrier comprising a hydroing at a temperature of 212 fibers which comprises imcarbon body existing as a liquid at tempera tures near 212 F., a dye soluble therein, and rosin.

4. A process of treating cordage and fabrics,

at a temperature above 212 F.

. 5. A process of treating cordage and fabrics, which comprises impregnating the same with a material including parafiin and diatomaceous earth, at a temperature above 212 F., and decreasing the temperature of impregnating material during the process.

6. A process which comprises immersing articles composed essentially of textile fibers, in a bath comprising diatomaceous earth, parafiin and rosin, at a temperature above 212 F., and thereafter subjecting said materials to a bath containing molten parafiin, said bath having a lower temperature than that employed in said first step.

7. A process which comprises immersing articles composed essentially of textile fibers,

in a bath comprising diatomaceous earth,

paraifin and rosin, and a dye soluble in said mixture, at a temperature above 212 F., and thereafter subjecting said materials to a bath containing molten paraifin, said bath having a lower temperature than that employed in said first step.

8. A rocess which comprises impregnating textile materials with a mixture includa non-reactive impermeablizing agent, liquid at temperatures near 212 F., and rosin, and a finely divided silicious material carried thereby.

9. Fabric and cordage impregnated with parafiin, diatomaceous earth and rosin.

10. Fabric and cordage impregnated with paraffin, a dye soluble therein, diatomaceous earth, and rosin.

11. A textile material impregnated with a preservative substance comprising a resolidified, non-reactive, impermeablizlng agent, liquid at temperatures above 212 F., a finely divided silicious material carried by said agent, and rosin.

12. A textile material impregnated with a preservative substance comprising aresolidified, non-reactive, impermeablizing agent, liquid at temperatures above 212 F., a finely divided silicious material carried by said agent, and rosin, said material carrying a coating of a poisonous solid material.

.13. A textile material impregnated with a reservative substance comprising a resolidied, non-reactive, impermeablizing agent, liquid at temperatures above 212 F., a finely divided silicious material carried by said agent, and rosin, said materialhaving a coating including Paris green.

14. A unitary article comprising in its structure, both fabric and cordage, said fabric and said cordage, being impregnated which comprises impregnating the same with a material including paralfin and. diatomaceous earth,

the

with a preservative substance, comprising a In testimony whereof I have aifixed my resolidified, non-reactive, impermeablizing signature in presence of two witnesses. agent, liquid at temperatures above 212 F., ROBERT ATHELSTAN MARR.

and solid at ordinary temperature, said im- Witnesses:

5 permeablizing agent carrying a finely di- A. B. FOSTER,

vided silicious material, and rosin. J ANEY Horn MARK. 

